Finding the Fourth Proportional to 91,587.72, 137,341.98 and 31,622.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91,587.72 : 137,341.98 = 31,622.52 : x
2. Step 2: Convert to fraction form
   91,587.72/137,341.98 = 31,622.52/x
3. Step 3: Cross multiply
   91,587.72x = 137,341.98 × 31,622.52
4. Step 4: Simplify right side
   91,587.72x = 4,343,099,509.39
5. Step 5: Solve for x
   x = 4,343,099,509.39/91,587.72
6. Step 6: Final answer
   x = 47,420.11